Premium material: Airtight rubber gasket made of silicone material, will not absorb , good sealing, reusable and durable, which is very safe and your family to use. It is easy to replace the gasket as you need. Have been designed for most ordinary mouth cans or jars. Use with stainless steel clip system of clip top jars to keep your food fresher for longer. Applications: The old rubber seal is easy to wear out after a long time use, these replacement silicone seals are fine replacements. They can be applied for airtight sealing to keep your fruit, vegetables, jams, sauces preserved, it is effortless to wash, you can simply add a little soap and wash them with warm water. Colour: transparent white Material: silica Size: 97x70mm Package Contents: 20 * Sealing ring Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.